added man page entry

dwm.1

@@ -86,6 +86,9 @@ Close focused window.
 .B Mod1-space
 Toggle between tiling and floating mode (affects all windows).
 .TP
+.B Mod1-Shift-space
+Toggle focused window between floating and non-floating state.
+.TP
 .B Mod1-[1..n]
 View all windows with
 .BR nth

dwm.h

@@ -164,7 +164,7 @@ extern void focusprev(Arg *arg);		/* focuses previous visible client, arg is ign
 extern Bool isvisible(Client *c);		/* returns True if client is visible */
 extern void resizemaster(Arg *arg);		/* resizes the master percent with arg's index value */
 extern void restack(void);			/* restores z layers of all clients */
-extern void togglefloat(Arg *arg);		/* toggles selected client floating/tiled resp. */
+extern void togglefloat(Arg *arg);		/* toggles focusesd client between floating/non-floating state */
 extern void togglemode(Arg *arg);		/* toggles global arrange function (dotile/dofloat) */
 extern void toggleview(Arg *arg);		/* toggles the tag with arg's index (in)visible */
 extern void view(Arg *arg);			/* views the tag with arg's index */